Added ImagePipe

mojo/services/gfx/images/cpp/image_pipe_producer_endpoint.cc

+// Copyright 2015 The Chromium Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
+
+#include "image_pipe_producer_endpoint.h"
+
+namespace image_pipe {
+
+void ImagePipeProducerEndpoint::CloseEndpoint() {
+  image_pipe_ptr_.reset();
+  endpoint_closed_callback_();
+}
+
+ImagePipeProducerEndpoint::ImagePipeProducerEndpoint(
+    mojo::gfx::ImagePipePtr image_pipe,
+    std::function<void()> endpoint_closed_callback,
+    bool is_checked)
+    : ImagePipeEndpoint(true, is_checked), image_pipe_ptr_(image_pipe.Pass()) {
+  endpoint_closed_callback_ = endpoint_closed_callback;
+  image_pipe_ptr_.set_connection_error_handler([this] { CloseEndpoint(); });
+}
+
+ImagePipeProducerEndpoint::~ImagePipeProducerEndpoint() {}
+
+bool ImagePipeProducerEndpoint::AcquireImage(uint32_t& id, bool blocking) {
+  bool have_image = false;
+  do {
+    have_image = ImagePipeEndpoint::AcquireNextImage(id);
+    if (blocking && !have_image) {
+      if (image_pipe_ptr_.encountered_error())
+        break;
+      image_pipe_ptr_.WaitForIncomingResponse();
+      if (image_pipe_ptr_.encountered_error())
+        break;
+    }
+  } while (blocking && !have_image);
+
+  return have_image;
+}
+
+void ImagePipeProducerEndpoint::AddImage(mojo::gfx::ImagePtr image,
+                                         uint32_t id) {
+  ImagePipeEndpoint::ProducerAdd(id);
+  image_pipe_ptr_->AddImage(image.Pass(), id);
+}
+
+void ImagePipeProducerEndpoint::RemoveImage(uint32_t id) {
+  ImagePipeEndpoint::ProducerRemove(id);
+  image_pipe_ptr_->RemoveImage(id);
+}
+
+void ImagePipeProducerEndpoint::ConsumerReleaseInternal(
+    uint32_t id,
+    mojo::gfx::PresentationStatus status) {
+  ImagePipeEndpoint::ConsumerRelease(id, status);
+}
+
+void ImagePipeProducerEndpoint::PresentImage(
+    uint32_t id,
+    const PresentImageCallback& callback) {
+  ImagePipeEndpoint::ProducerPresent(id, callback);
+  image_pipe_ptr_->PresentImage(
+      id, [this](uint32_t id, mojo::gfx::PresentationStatus status) {
+        ConsumerReleaseInternal(id, status);
+      });
+}
+
+void ImagePipeProducerEndpoint::FlushImages() {
+  ImagePipeEndpoint::ProducerFlush();
+  image_pipe_ptr_->FlushImages();
+}
+
+void ImagePipeProducerEndpoint::GetSupportedImageProperties(
+    const GetSupportedImagePropertiesCallback& callback) {
+  image_pipe_ptr_->GetSupportedImageProperties(callback);
+}
+}